Screening and prevention of colorectal cancer in Haining county.
D000293:Adolescent; D000328:Adult; D000368:Aged; D002648:Child; D002681:China; D003110:Colonic Neoplasms / Q000453:epidemiology* / Q000517:prevention & control; D006801:Humans; D007417:Intestinal Polyps / Q000453:epidemiology; D008403:Mass Screening; D008875:Middle Aged; D012004:Rectal Neoplasms / Q000453:epidemiology* / Q000517:prevention & control; D012552:Schistosomiasis / Q000453:epidemiology